Loom feeler



March 17, 1925. 1,530,040

A. H. DUVAL Loom FEELER Filed Nov. 8, 1922 2 Sheets-Sheet l March 17,1925. 1,530,040

A. H. DUVAL Loon FEELER Filed Nov. a, 1922 2 'sheets-sheet 2 PatentedMar. 17, 1925.

ARMAND HECTOR DUVAL, OF WALTHAM, `MASSCHUSETTS.

nooivr ritenne..

Application mea November s, 1922. semi No. 5995707.

To all ywhmn-fitfmag/ concern: Be it known that I, ARMAND Hnoron mt, acitizen ofthe United States, residing at Valtham, kin the county ofMiddlesex and State of Massachusetts, have invented certain new anduseful Improvements in Loom 'Feelers, of which the following is aspecification. l y

This invention relates to bobbin feeler mechanism for looms wherein itis desired to `reduce the wast-e on the running bobbin to the minimum. l

It is an object of the invention to produce awfeeler of this class thatis simple, `eiiicient, andclieap to manufacture, and which is-composed,of very few part-s. Q y

A further `object Vof the tinvention is to so simplify the structure ofthe feeler, that feeler .brackets already in existence may be rapidlyequipped therewith but slight expense-and very littleloss of time. i

Another .object of the invention 1s to produce a feeler of thisclasshaving a bobbin contact member which is `normally out of but, tending toassume `bobbin transferring position, but which `is restrained therefromuntil cont-act actually takes place and the contact member has beenmoved forwardly.

lt is not known that a .feeler has everv beeny used .wherein i thebobbin contact y memi i ber is-normally,heldout of bobbin transferringposition, but whiehis always under the influence of an actuator; spring,`to immediately move it into' such position at.the proper time and whichis normally held outof bobbin transferring position byiadevice whichcausessaid-Inember to be Ireset after eachbobbin transfer.y

Nor is it known that 4a lfeeler yhasever been used having as small ,a`number of parts which can be attached to existing devicessuch asl` thefeeler bracket and slide.

The-inventionfurther consists in certain novel'ifeatures of constructionand ,arrangement of parts which will be fully `under-- stood from a.description of the ydrawings and the claims hereinafterj given.

Of the drawings: Figure l represents in top plan view a sufficientportion of a loom with the invention applied thereto to enable it to beunderstood.

Figure 2 an enlarged top plan View of y such a l the feeder shown incontact with a full bobbin. f

Figure 3 a Side elevation of the feeler shown in Figure 2.

Figure 4 a partial view of the feeler as shown in Figure 2 but showingthe position it would assume when in contact with a nearly spent bobbinand `about to cause bobbin transfer.

Like characters represent like parts throughout the several figures ofthe drawings.

Referring to the drawings: The draw-` ings herewith show the inventionas applied.`

to the well ,known Northrop loom wherein the battery l() is providedwith a plurality of full ,bobbins l1 awaiting their turn to betransferred to the shuttle l2.

The transfer of a bobbin may be initiated by atilling feeler which inlsome instances is set to eject abobbin, and supply a fully one justbefore complete exhaustion of the ejected bobbin.

The present invention contemplates a filling feeler of such constructionvthat af bobbin transfer is not effected by the lfeeler until ya portionat least of the running bobbin has beenexhausted to such extent that thebarrel thereof is met by the feeler contact-member. y

It will alsorbe understood that it is intended to cagusefbobbin transferjust before complete exhaustion of the ruiming bobbin transfer asprovision is made to bare the said ybarrel at the feeler contact pointand cause the transfer while there is still a sufficient: 1quantity ofyarn on the bobbin to complete at least one pick4 of the shuttle.

At the left side of the loom vandfast to the lock plate 13 is a feelercarrying bracket of box-like structure la andof al design welllnown inthe art. I

Mounted in said bracket `14E is the usual slide member 15 which isnormally held in the position shown in Figures l and 2 by thespring 1.6.n

Fivotally mounted to the said slide is a bobbin contact member 17 uponwhich the tension of the spring 18 is always exerted, tending to movesaid member into the position shown in Figure 4.

`In the normal position of the feeler7 however, the said member 17' ispreventedv from assuming the said position by a combined vstop andresetting plate 19 which is adjustably secured to the feeler bracket 14by one of the usual or existing bracket screws 2O.

The member 17 at the bobbin end may be provided with a toothed contactsurface 21 for a purpose to be described and at its other end having anupstanding portion 22 adapted to abut the inclined edge 23 of the stopplate y19, which normally prevents the member from being swung to theposition seen in Figure 4.

Slidably .mounted in a suitable guide 24 of the bracket 14 is anintermediate member 25 which is adapted to be met and actuated by theportion 221 at a certain time, and which in turn n'iay actuate a pivotedspring pressed lever 26 normally held in the position shown in Figure 1.

c The lever 26 in turn coacts with a cani surface, not shown, of apivoted lever 27 the end 28 of which is adapted to be depressed uponfeeler actuation, to lower the lever 29 or the end thereof into the pathof a regularly moving part of the loom such as a dog 30 carried by theweft hammer 31.

In this instance the lever 29 is pivoted to a lever 32 and rests uponthe end 28 of the lever 27, the said lever 32 being fast upon thestarting shaft 33, a partial rotation of which, as is well known, causesthe transferring means of the battery to be positioned for actuation.

As the invention does not include the devices which are intermediate thefeeler and the battery or magazine, it is obvious that any suitablecombination of devices may be used which may derive their movement fromthe feeler.

In order to permit the bobbin contact member 17 of the feeler to beengaged by the running bobbin B, the shuttle box wall 35 and shuttlewall are provided with entrance slots 36, and 37, respectively.

During the regular running of the loom with a full bobbin in theshuttle, on each forward beat of the lay when the shuttle is in the lefthand box, the feeler will enter the slots 36 and 37 and the member 17will meet the yarn of the bobbin and the teeth 21 will sink into it.

The lay will continue its forward movement forcing the slide 15,throughits connection with the said member 17, against the spring 16,and the portion 22 will be caused to travel forwardly while maintainingits relative position with the slide shown in Figure 2.

At this time and in fact at all times the spring 18 is exerting itspower to swing the member 17 into the Aposition shown in Figure 4, butas before stated the teeth 21 are now engaged with the yarn on thebobbin on the beat up of the lay and prevent the swinging movement.

If, however, the yarn on the bobbin has been exhausted to a pointwherein the bare barrel of the bobbin is exposed as shown in Figure 4,the 'teeth will then find nothing to grip and the spring will exert itspower, and as the slide 15 is forced forwardly the portion 22 instead ofmoving in a straight line as before, will be gradually swung toward themember 25', or as rapidly as the speed of the lay and the incline 23permits, until it is in position to strike said member 25 forcing itforward, and through the devices previously explained cause a bobbintransfer. f

lVhen the transfer has been completed and the lay moves rearwardly theslide 15 will follow it to the extent of its own movement, under theaction of the spring 16, and in so doing the portion 22 will be causedto travel along the incline 23 toward the free end thereof which actionresets the feeler member 17 to its normal position, as seen in Figures 1and 2. y

Having described the invention I claim:

A loom fee-ler of the class described, comprising existing elements suchas a feeler bracket and a feeler carrier slide mounted in said bracketand normally under the control of a spring in said bracket, all as usedon existing looms, in combination with a bobbin contact memberpivotedmidway of its length on said carrier slide and having f its rear endextending forward end upwardly turned to engage a cam plate; a spring onsaid slide normally holdingsaid contact member and said plate inengagement;a cam plateadjustably secured to said bracket by an existingscrew, said plate projecting rearwardly and laterally to overlie saidslide and forward portion of said contact member and providing al camsurface to co-operate with the upwardly turned end of said contact tonormally retain said member inv bobbin feelin@ position and to yresetsaid member after beyond it, and its bolpbbin transfer; aI second slidemember" overlying said carrier slide mounted in an existing guide way ofsaid bracket and adapted to be actuated by the upturned end ofsaidContact member; and means coacting with said second slide member toeffect bobbin transfer.

ARMAND HECTOR DUVAL.

